Hi Manos,doing which catkin_make I didn't get the path so I have written locate catkin_make, below the results/home/danielecaligiore/Documents/NRP/GazeboRosPackages/build/catkin_make.cache/opt/ros/kinetic/bin/catkin_make/opt/ros/kinetic/bin/catkin_make_isolated/opt/ros/kinetic/etc/catkin/profile.d/05.catkin_make.bash/opt/ros/kinetic/etc/catkin/profile.d/05.catkin_make_isolated.bash/opt/ros/kinetic/share/catkin/cmake/env-hooks/05.catkin_make.bash/opt/ros/kinetic/share/catkin/cmake/env-hooks/05.catkin_make_isolated.bash